[Fine Thread Drywall Screw details] Wood screw m3.5, length: 16mm / 20mm / 25mm / 30mm / 35mm / 40mm / 50mm. A total of 245 screws are included in the set.

【Top 304 Stainless Steel】Our assorted hardware Lock metal washers, is made of top 304 stainless steel which has the advantages of high hardness, well wear-resistance, corrosion resistance and rust resistance. Which can ensure long time using even in bad environment like high temperature, cold weather, and high humidity areas

【Advanced material】: These screws are made from a high quality black steel.The screws are treated so they resist rust and corrosion.They are high strength and will not deform or break under normal use.The aggressive screw twist pattern allows you to drive them fast and to complete your project efficiently and quickly

E-clips is a kind of fastener, which is installed in the shaft groove of machines and equipment and plays a role in preventing the axial movement of parts on the shaft

[Details of screw set] M3 bolt, M3 nut, M3 washer, M4 bolt, M4 nut, M4 washer. Bolt length: 8mm / 12mm / 14mm / 16mm / 20mm. It is a set of 480 screw bolts in total.

Flat head screw with cross hole Material] High quality color galvanized surface. Since the surface is galvanized, it has excellent durability, corrosion resistance, and chemical resistance. Strong, sturdy and resistant to deformation.